Community Research and Development Information Service - CORDIS


Although the invention of the ionisation chamber dates back nearly 50 years, the last decade has seen a remarkable revival of this device for charged particle detection. It has become apparent that such a detector has distinct advantages. Not only does the ionisation chamber allow measurements of total particle energy with energy resolution far superior to that of surface barrier detectors but also simultaneously the particle's specific ionisation density distribution (the so-called Bragg-curve) can be determined. Therefore, in addition to the particle kinetic energy, mass and angular distribution, information can be obtained about the atomic number of the detected ion, using a double Frisch gridded ionisation chamber. This type of detector has been in use at CBNM for almost 10 years and has been substantially improved during this period. The special electronic treatment of the chamber pulses is described and the necessary corrections to the raw chamber signals are demonstrated step by step, giving typical key figures and the way they are implemented. An error estimation is also given.

Additional information

Authors: HAMBSCH F-J, JRC Geel (BE)
Bibliographic Reference: Paper presented: High Resolution Spectroscopy of Fission Fragments, Neutrons and Gamma-rays, Dresden (DE), February 1-2, 1993
Availability: Available from (1) as Paper EN 37388 ORA
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